For loop in Swig template engine

Question

I'm using Swig as a template engine for Express.js and I found no way to make a for loop with a variable like so:

for(var i=0; i<100; i++){
  //whatever
}

Is this even possible?

Answer 1

As posted on your github issue for the same question, loops like this don't exist in Swig. You can iterate over actual objects and arrays, however. (See for-tag documentation).

Otherwise, you could create a range helper, as discussed here

swig.setDefaults({ locals: {
  range: function (start, len) {
    return (new Array(len)).join().split(',').map(function (n, idx) { return idx + start; });
  }
}});